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Fermentation of Glucose and Xylose to Hydrogen in the Presence of Long Chain Fatty Acids

Posted on:2010-06-17Degree:M.Appl.ScType:Thesis
University:University of Windsor (Canada)Candidate:Reaume, StephenFull Text:PDF
GTID:2441390002489525Subject:Engineering
Abstract/Summary:
Hydrogen is a clean, efficient and versatile energy source which makes it a suitable alternative to fossil fuels. Mixed anaerobic cultures has the potential to produce hydrogen in a sustainable way in methanogenic bacteria can be inhibited.;The highest amount of hydrogen produced took place in cultures fed LA plus xylose, glucose and the 50%/50% sugar mixture with yields of 2.13+/-0.05, 2.46+/-0.19 and 2.32+/-0.17 mol H2/mol sugar, respectively. The maximum yields generated on a mol hydrogen per mass of sugar was 13.65, 14.20 and 14.08 mmol H2/g sugar for the respective sugars fermented. The final results showed that the ratio of the two different sugars did not have a significant difference in the hydrogen yield.;Batch studies were performed to assess the fermentation of glucose and xylose individually and together to observe if the sugar mixture is effective in hydrogen fermentation. Experiments were performed using a variety of LCFAs in order to inhibit methanogens so hydrogen can be collected.
Keywords/Search Tags:Hydrogen, Fermentation, Glucose, Xylose
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